It looks like a standard sports water bottle, in fact with the filter removed it can be used as such. It comes supplied with an insulated pouch and shoulder strap which I'll probably not use. (I've already commandeered the strap for use with a Lowe Pro camera bag.)
Filter, bottle and cap
Use is straightforward; fill with water, prime and flush the filter, and drink clean bug and chemical free water. Or use to fill up your pan or bladder if using one. Simple and effective.
Like with the earlier model the inked on logo and instructions have started to wear off after just one use. As this is a no-brainer to use, I think I'll just finish the process and remove the remaining markings. The weight of the unit is 150g and as this includes the weight of a bottle it's a very lightweight solution for when water treatment is required.
I'm out at the weekend so will pack the Travel Tap and will try and hunt out cattle troughs or other sources of dodgy water to give it a try.